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381415102 = 21217156703
BaseRepresentation
bin10110101110111…
…110111010111110
3222120200220011021
4112232332322332
51240120240402
6101503014354
712310655245
oct2656767276
9876626137
10381415102
111863318a2
12a789a3ba
1361035313
143892795c
1523741d37
hex16bbeebe

381415102 has 8 divisors (see below), whose sum is σ = 572596416. Its totient is φ = 190549632.

The previous prime is 381415093. The next prime is 381415109. The reversal of 381415102 is 201514183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381415109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75918 + ... + 80785.

It is an arithmetic number, because the mean of its divisors is an integer number (71574552).

Almost surely, 2381415102 is an apocalyptic number.

381415102 is a deficient number, since it is larger than the sum of its proper divisors (191181314).

381415102 is a wasteful number, since it uses less digits than its factorization.

381415102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157922.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 381415102 is about 19529.8515611358. The cubic root of 381415102 is about 725.2136362884.

Adding to 381415102 its reverse (201514183), we get a palindrome (582929285).

The spelling of 381415102 in words is "three hundred eighty-one million, four hundred fifteen thousand, one hundred two".

Divisors: 1 2 1217 2434 156703 313406 190707551 381415102